Robert O. Bryant, 57, of Plymouth, died when he lost control of his motorcycle and crashed on Route 25. It was the second of two fatal accidents in Wareham on Tuesday.

Bryant’s accident happened west on Route 25 just east of Exit 2 just after 7 p.m.

State Police said Bryant lost control of the 2005 Harley Davidson FXD motorcycle he was driving and dropped the bike. The motorcycle slid for more than 300 feet before coming to a stop. Bryant was taken to Tobey Hospital in Wareham where he was pronounced dead.

At about 1:10 p.m. Tuesday, Robert A. Alves, 67, of Mattapoisett was killed on Interstate 195, near the Route 28 exit. His Ford Taurus drifted into the left lane and entered the center median, according to a preliminary investigation by Trooper Kevin Brito. The car continued east for several hundred feet before striking several trees and rolling onto its left side.